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单选题
APDP（All Path Detection Protocol）最长在多长时间内检测到接口故障（）。
A
50ms
B
1-2s
C
100ms
D
50s
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Which of the following statements regarding routed and routing protocols are true?()
A. A routed protocol is assigned to an interface and determines the method of packet deliver.B. A routing protocol determines the path of a packet through a network.C. A routed protocol determines the path of a packet through a network.D. A routing protocol operates at the transport layer of the OSI model.E. A routed protocol updates the routing table of a router.
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在组播网络中RPF代表什么?()。
A.Reverse protocol forwardingB.Reverse protocol floodingC.Reverse path forwardingD.Reverse path flooding
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关于APDP（All Path Detection Protocol），以下说法正确的是（）。A、APDP本地模式是指接口状态直接由数据平面感知，快速检测到故障，而且远端设备不需要支持APDP，但是不能应用于路由器之间有传输设备的情况B、APDP远端模式下，远端设备不需要支持APDP，可以检测所有本地故障和远端故障C、APDP本地模式和远程模式可以单独使用，也可以同时使用D、不能在一台路由器上同时运行APDP本地模式和远程模式，如果同时配置了这两种模式，则只有远程模式起作用
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What two things will a router do when running a distance vector routing protocol? （）A、Send periodic updates regardless of topology changes.B、Send entire routing table to all routers in the routing domain.C、Use the shortest-path algorithm to the determine best path.D、Update the routing table based on updates from their neighbors.E、Maintain the topology of the entire network in its database.
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When policy - based routing (PBR) is being configured, which three criteria can the set command specify?（）A、all interfaces in the path toward the destinationB、all networks in the path toward the destinationC、adjacent next hop router in the path toward the destinationD、all routers in the path toward the destinationE、all interfaces through which the packets can be routedF、type of service and precedence in the IP packets
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On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A、 Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B、 Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C、 Overrides the default UDLS setting for all portsD、 Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E、 None of the other alternatives apply
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2500+设备在检测到复用段备用通道故障后，会产生（）告警。A、SCC上报“path-mon-fail”B、SCC上报“hard-bad”C、XCS上报“hard-bad”D、S16上报“path-mon-fail”
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在组播网络中RPF代表什么？（）。A、Reverse protocol forwardingB、Reverse protocol floodingC、Reverse path forwardingD、Reverse path flooding
考题
单选题On switch R1 you issue the "udld enable" global command. What does this command accomplish？ （）A
Enables all fiber-optic LAN ports for Unidirectional LINK Detection （UDLD）B
Enables all copper media LAN ports Unidirectional Link Detection （UDLD）C
Overrides the default UDLS setting for all portsD
Globally enables all ports on the device for Unidirectional Link Detection （UDLS）E
None of the other alternatives apply
考题
单选题Which path selection protocol is used by Fibre Channel fabrics?（）A
IVRB
VoQC
FSPFD
VSANsE
SANTap
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考题
单选题Which path selection protocol is used by Fibre Channel fabrics？（）A
IVRB
VoQC
FSPFD
VSANsE
SANTap
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多选题关于APDP（All Path Detection Protocol），以下说法正确的是（）。AAPDP本地模式是指接口状态直接由数据平面感知，快速检测到故障，而且远端设备不需要支持APDP，但是不能应用于路由器之间有传输设备的情况BAPDP远端模式下，远端设备不需要支持APDP，可以检测所有本地故障和远端故障CAPDP本地模式和远程模式可以单独使用，也可以同时使用D不能在一台路由器上同时运行APDP本地模式和远程模式，如果同时配置了这两种模式，则只有远程模式起作用
考题
单选题在组播网络中RPF代表什么？（）。A
Reverse protocol forwardingB
Reverse protocol floodingC
Reverse path forwardingD
Reverse path flooding
考题
单选题在路由器上运行了show int Ethernet 0命令后，提示Ethernet 0 is up line protocol is down，则表示（）A
端口正常B
连接故障，路由器未接到LAN上C
接口故障D
接口被人为地关闭
考题
判断题APDP检测到链路故障恢复时，系统将立即将业务流量恢复到主链路上。A
对B
错
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